Commit 7590ebb8 authored by Yi Wang's avatar Yi Wang Committed by Zhenyu Wang

drm/i915/gvt: fix memory leak in intel_vgpu_ioctl()

The 'sparse' variable may leak when return in function
intel_vgpu_ioctl(), and this patch fix this.
Signed-off-by: default avatarYi Wang <wang.yi59@zte.com.cn>
Reviewed-by: default avatarJiang Biao <jiang.biao2@zte.com.cn>
Signed-off-by: default avatarZhenyu Wang <zhenyuw@linux.intel.com>
parent 4b25e737
......@@ -1257,11 +1257,13 @@ static long intel_vgpu_ioctl(struct mdev_device *mdev, unsigned int cmd,
&sparse->header, sizeof(*sparse) +
(sparse->nr_areas *
sizeof(*sparse->areas)));
if (ret) {
kfree(sparse);
if (ret)
return ret;
}
break;
default:
kfree(sparse);
return -EINVAL;
}
}
......@@ -1277,6 +1279,7 @@ static long intel_vgpu_ioctl(struct mdev_device *mdev, unsigned int cmd,
sizeof(info), caps.buf,
caps.size)) {
kfree(caps.buf);
kfree(sparse);
return -EFAULT;
}
info.cap_offset = sizeof(info);
......@@ -1285,6 +1288,7 @@ static long intel_vgpu_ioctl(struct mdev_device *mdev, unsigned int cmd,
kfree(caps.buf);
}
kfree(sparse);
return copy_to_user((void __user *)arg, &info, minsz) ?
-EFAULT : 0;
} else if (cmd == VFIO_DEVICE_GET_IRQ_INFO) {
......
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